CN108745299A - A kind of preparation method of special appearance adsorbent - Google Patents
A kind of preparation method of special appearance adsorbent Download PDFInfo
- Publication number
- CN108745299A CN108745299A CN201810472060.1A CN201810472060A CN108745299A CN 108745299 A CN108745299 A CN 108745299A CN 201810472060 A CN201810472060 A CN 201810472060A CN 108745299 A CN108745299 A CN 108745299A
- Authority
- CN
- China
- Prior art keywords
- adsorbent
- special appearance
- preparation
- stand
- solution
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
- B01J20/24—Naturally occurring macromolecular compounds, e.g. humic acids or their derivatives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/286—Treatment of water, waste water, or sewage by sorption using natural organic sorbents or derivatives thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2220/00—Aspects relating to sorbent materials
- B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
- B01J2220/48—Sorbents characterised by the starting material used for their preparation
- B01J2220/4812—Sorbents characterised by the starting material used for their preparation the starting material being of organic character
- B01J2220/4825—Polysaccharides or cellulose materials, e.g. starch, chitin, sawdust, wood, straw, cotton
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/308—Dyes; Colorants; Fluorescent agents
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Medicinal Preparation (AREA)
Abstract
The present invention relates to adsorbent preparing technical fields, and in particular to a kind of preparation method of special appearance adsorbent includes the following steps：（1）It weighs a certain amount of polysaccharide to be dissolved into the aqueous solution of acid, stirring is then allowed to stand 1 ~ 5 h until polysaccharide dissolving；（2）Under stiring, by step（1）In polysaccharide solution with 1 ~ 2 drop/2 s be added drop-wise in the mixed solution of certain density sodium hydroxide and ethyl alcohol, be then allowed to stand 1 ~ 12 h；（3）Step（2）In mixed liquor filtering, washing to neutrality is to get to special appearance adsorbent.Adsorbent prepared by the present invention has the special appearance of stoning hawthorn shape, has larger specific surface area, there is ideal treatment effect to the waste water containing heavy metal ion and dyestuff；Preparation process is simple, mild condition.
Description
Technical field
The present invention relates to adsorbent preparing technical fields, and in particular to a kind of preparation method of special appearance adsorbent.
Background technology
In recent years, the pollution of global freshwater resources is one of main Environmental Problems of facing mankind, especially heavy metal and
The pollution of organic matter causes the extensive concern of people.With petrochemical industry, printing, dyeing, weaving, plastics, leather, food etc.
The fast development of industry, the industrial wastewater containing organic dyestuff and heavy metal are discharged into soil and water body in large quantities, seriously
Threaten the living space of the mankind.In addition, being limited, research water money due to facilitating the freshwater resources total amount utilized for the mankind
Recycling for source has very important significance.However, with the continuous growth of population, global freshwater resources consumption increases
Long speed is increased with the rate of population increase more than twice, it means that the consumption of every 20 years global freshwater resources will turn over
One times.In order to ensure the supply of freshwater resources, reduces water pollution or the processing recycling of polluted source is received each
National more and more attention.
Currently, the industrial wastewater of processing heavy metal and organic dyestuff mainly has chemical method, physical-chemical process and biotechnology
The methods of.In these processing methods, absorption method has high treating effect, easy to operate and good selective, especially
Have pollution is strong, low concentration, other processing methods are difficult to the heavy metal pollution being effectively treated and organic polluting water field
Special application value.The active charcoal of common adsorbent, zeolite, clay, biopolymer, molecular sieve and some industrial wastes
Object etc., but these adsorbent prices are high, adsorption capacity is low.
Chitosan be one kind be present in nature it is renewable, have no toxic side effect, biocompatibility and degradability it is good
Native amino the polysaccharide ,-NH contained in structure2There is stronger combination to metal ion with-OH groups.Using
Chitosan microball or chitosan film, can effectively in Adsorption waste water low-concentration heavy metal ions and waste water from dyestuff color.
But most of nano adsorbers, all exist with pulverulence, it is small there are specific surface area the problems such as, limit its practical application.
Invention content
In view of the deficiencies of the prior art, the present invention provides a kind of preparation methods of special appearance adsorbent, prepare
Go out the adsorbent of the stoning hawthorn shape of large specific surface area.
In order to solve the above-mentioned technical problem, the present invention is achieved by the following technical solutions：A kind of special appearance absorption
The preparation method of agent, includes the following steps：
（1）It weighs a certain amount of polysaccharide to be dissolved into the aqueous solution of acid, stirring is then allowed to stand 1 ~ 5 h until polysaccharide dissolving；
（2）Under stiring, by step（1）In polysaccharide solution with 1 ~ 2 drop/2 s be added drop-wise to certain density sodium hydroxide and second
In the mixed solution of alcohol, it is then allowed to stand 7 ~ 17 h；
（3）Step（2）In mixed liquor filtering, washing to neutrality is to get to special appearance adsorbent.
Preferably, the step（1）In polysaccharide be one kind in chitosan or xanthans or ammonium alginate, institute
It is one kind in citric acid or acetylacetone,2,4-pentanedione or ethylenediamine tetra-acetic acid or acetic acid to state acid.
Preferably, the step（1）The middle solution left standstill time is 2 h.
Preferably, the step（2）The rate of addition of middle polysaccharide solution is 1/2 s of drop.
Preferably, the step（2）The mass concentration of middle sodium hydroxide is 10%.
Preferably, the step（2）The volumetric concentration of middle ethyl alcohol is 20%.
Preferably, the step（2）The time of repose of middle mixed liquor is 12 h.
Preferably, the step（3）Middle gained special appearance adsorbent is stoning hawthorn shape adsorbent.
Compared with prior art, the beneficial effects of the invention are as follows：Adsorbent prepared by the present invention has stoning hawthorn shape
Special appearance has larger specific surface area, there is ideal treatment effect to the waste water containing heavy metal ion and dyestuff；
Preparation process of the present invention is simple, mild condition.
Description of the drawings
Fig. 1 is that special appearance adsorbent prepared by embodiment 1 is schemed through NaCl solution treated mapping；
Fig. 2 is photo before and after special appearance adsorbent absorption fuchsin solution prepared by embodiment 1.
Specific implementation mode
Embodiment described here is some preferred implementation methods, for further describing and demonstrating the present invention, it is not intended to
Limit the invention to the details of following determinations.
Embodiment 1：
（1）It weighs 10 g chitosans and is dissolved into 500 ml 5%（v/v）In acetum, mechanical agitation is until chitosan dissolves, so
After stand 2 h.
（2）It under magnetic stirring, will with syringe（1）In chitosan solution with 1 drop/2 s speed be added drop-wise to 800
Ml sodium hydroxides（10w t%）And ethyl alcohol（20%（v/v））Mixed liquor in, be then allowed to stand 12 h.
（3）?（2）In mixed liquor by the acidproof filter-cloth filtering of 150 mesh, with water washing three times to neutrality, obtain stoning mountain
Short, bristly hair or beard shape adsorbent.
（4）It weighs 0.05 g stoning hawthorn shape adsorbents and is added to 50 ml fuchsin solution（w t=0.01%）In, it is inhaled
It is attached, the results showed that, after adsorbing 3 h, percent of decolourization is up to 98% or more.
Embodiment 2：
（1）It weighs 10 g xanthans and is dissolved into 500 ml 5%（v/v）In acetum, mechanical agitation is until xanthans dissolves, so
After stand 2 h.
（2）It under magnetic stirring, will with syringe（1）In xanthan gum solution with 1 drop/2 s speed be added drop-wise to 800
Ml sodium hydroxides（10w t%）And ethyl alcohol（20%（v/v））Mixed liquor in, be then allowed to stand 12 h.
（3）?（2）In mixed liquor be sieved through filter by 150 mesh stainless steels, with water washing three times to neutrality, obtain stoning mountain
Short, bristly hair or beard shape adsorbent.
（4）It weighs 0.05 g stoning hawthorn shape adsorbents and is added to 50 ml rhodamine b solution（w t=0.01%）In, it carries out
Absorption, the results showed that, after adsorbing 3 h, percent of decolourization is up to 98% or more.
Embodiment 3：
（1）It weighs 10 g sodium alginates and is dissolved into 500 ml 5%（v/v）In acetum, mechanical agitation is until sodium alginate is molten
Solution, is then allowed to stand 2 h.
（2）It under magnetic stirring, will with syringe（1）In sodium alginate soln with 1 drop/2 s speed be added drop-wise to 800
Ml sodium hydroxides（10w t%）And ethyl alcohol（20%（v/v））Mixed liquor in, be then allowed to stand 12 h.
（3）?（2）In mixed liquor be sieved through filter by 150 mesh stainless steels, with water washing three times to neutrality, obtain stoning mountain
Short, bristly hair or beard shape adsorbent.
（4）It weighs 0.05 g stoning hawthorn shape adsorbents and is added to 50 ml Coomassie Brillant Blue solutions（w t=0.01%）In,
It is adsorbed, the results showed that, after adsorbing 3 h, percent of decolourization is up to 98% or more.
Embodiment 4：
（1）It weighs 10 g chitosans and is dissolved into 500 ml 5%（v/v）In citric acid solution, mechanical agitation is dissolved up to chitosan,
It is then allowed to stand 2 h.
（2）It under magnetic stirring, will with syringe（1）In chitosan solution with 1 drop/2 s speed be added drop-wise to 800
Ml sodium hydroxides（10w t%）And ethyl alcohol（20%（v/v））Mixed liquor in, be then allowed to stand 12 h.
（3）?（2）In mixed liquor be sieved through filter by 150 mesh stainless steels, with water washing three times to neutrality, obtain stoning mountain
Short, bristly hair or beard shape adsorbent.
（4）It weighs 0.05 g stoning hawthorn shape adsorbents and is added to 50 ml fuchsin solution（w t=0.01%）In, it is inhaled
It is attached, the results showed that, after adsorbing 3 h, percent of decolourization is up to 98% or more.
Embodiment 5：
（1）It weighs 10 g chitosans and is dissolved into 500 ml 5%（v/v）In edta solution, mechanical agitation is until shell is poly-
Sugar dissolving, is then allowed to stand 2 h.
（2）It under magnetic stirring, will with syringe（1）In chitosan solution with 1 drop/2 s speed be added drop-wise to 800
Ml sodium hydroxides（10w t%）And ethyl alcohol（20%（v/v））Mixed liquor in, be then allowed to stand 12 h.
（3）?（2）In mixed liquor be sieved through filter by 150 mesh stainless steels, with water washing three times to neutrality, obtain stoning mountain
Short, bristly hair or beard shape adsorbent.
（4）It weighs 0.05 g stoning hawthorn shape adsorbents and is added to 50 ml fuchsin solution（w t=0.01%）In, it is inhaled
It is attached, the results showed that, after adsorbing 3 h, percent of decolourization is up to 98% or more.
Embodiment 6：
（1）It weighs 10 g chitosans and is dissolved into 500 ml 5%（v/v）In acetylacetone,2,4-pentanedione solution, mechanical agitation is until chitosan is molten
Solution, is then allowed to stand 2 h.
（2）It under magnetic stirring, will with syringe（1）In chitosan solution 800 ml are added drop-wise to the speed of 1 drop/2s
Sodium hydroxide（10w t%）And ethyl alcohol（20%（v/v））Mixed liquor in, be then allowed to stand 12 h.
（3）?（2）In mixed liquor be sieved through filter by 150 mesh stainless steels, with water washing three times to neutrality, obtain stoning mountain
Short, bristly hair or beard shape adsorbent.
（4）It weighs 0.05 g stoning hawthorn shape adsorbents and is added to 50 ml fuchsin solution（w t=0.01%）In, it is inhaled
It is attached, the results showed that, after adsorbing 3 h, percent of decolourization is up to 98% or more.
Embodiment 7：
（1）It weighs 10 g xanthans and is dissolved into 500 ml 5%（v/v）In citric acid solution, mechanical agitation is dissolved up to xanthans,
It is then allowed to stand 2 h.
（2）It under magnetic stirring, will with syringe（1）In xanthan gum solution with 1 drop/2 s speed be added drop-wise to 800
Ml sodium hydroxides（10w t%）And ethyl alcohol（20%（v/v））Mixed liquor in, be then allowed to stand 12 h.
（3）?（2）In mixed liquor be sieved through filter by 150 mesh stainless steels, with water washing three times to neutrality, obtain stoning mountain
Short, bristly hair or beard shape adsorbent.
（4）It weighs 0.05 g stoning hawthorn shape adsorbents and is added to 50 ml rhodamine b solution（w t=0.01%）In, it carries out
Absorption, the results showed that, after adsorbing 3 h, percent of decolourization is up to 98% or more.
Embodiment 8：
（1）It weighs 10 g xanthans and is dissolved into 500 ml 5%（v/v）In edta solution, mechanical agitation is until xanthan
Peptization solution is then allowed to stand 2 h.
（2）It under magnetic stirring, will with syringe（1）In xanthan gum solution with 1 drop/2 s speed be added drop-wise to 800
Ml sodium hydroxides（10w t%）And ethyl alcohol（20%（v/v））Mixed liquor in, be then allowed to stand 12 h.
（3）?（2）In mixed liquor be sieved through filter by 150 mesh stainless steels, with water washing three times to neutrality, obtain stoning mountain
Short, bristly hair or beard shape adsorbent.
（4）It weighs 0.05 g stoning hawthorn shape adsorbents and is added to 50 ml rhodamine b solution（w t=0.01%）In, it carries out
Absorption, the results showed that, after adsorbing 3 h, percent of decolourization is up to 98% or more.
Embodiment 9：
（1）It weighs 10 g xanthans and is dissolved into 500 ml 5%（v/v）In acetylacetone,2,4-pentanedione solution, mechanical agitation is until xanthan peptization
Solution, is then allowed to stand 2 h.
（2）It under magnetic stirring, will with syringe（1）In xanthan gum solution with 1 drop/2 s speed be added drop-wise to 800
Ml sodium hydroxides（10w t%）And ethyl alcohol（20%（v/v））Mixed liquor in, be then allowed to stand 12 h.
（3）?（2）In mixed liquor be sieved through filter by 150 mesh stainless steels, with water washing three times to neutrality, obtain stoning mountain
Short, bristly hair or beard shape adsorbent.
（4）It weighs 0.05 g stoning hawthorn shape adsorbents and is added to 50 ml rhodamine b solution（w t=0.01%）In, it carries out
Absorption, the results showed that, after adsorbing 3 h, percent of decolourization is up to 98% or more.
Embodiment 10：
（1）It weighs 10 g sodium alginates and is dissolved into 500 ml 5%（v/v）In citric acid solution, mechanical agitation is until sodium alginate
Dissolving, is then allowed to stand 2 h.
（2）It under magnetic stirring, will with syringe（1）In sodium alginate soln with 1 drop/2 s speed be added drop-wise to 800
Ml sodium hydroxides（10w t%）And ethyl alcohol（20%（v/v））Mixed liquor in, be then allowed to stand 12 h.
（3）?（2）In mixed liquor be sieved through filter by 150 mesh stainless steels, with water washing three times to neutrality, obtain stoning mountain
Short, bristly hair or beard shape adsorbent.
（4）It weighs 0.05 g stoning hawthorn shape adsorbents and is added to 50 ml Coomassie Brillant Blue solutions（w t=0.01%）In,
It is adsorbed, the results showed that, after adsorbing 3 h, percent of decolourization is up to 98% or more.
Embodiment 11：
（1）It weighs 10 g sodium alginates and is dissolved into 500 ml 5%（v/v）In edta solution, mechanical agitation is until sea
Mosanom dissolves, and is then allowed to stand 2 h.
（2）It under magnetic stirring, will with syringe（1）In sodium alginate soln with 1 drop/2 s speed be added drop-wise to 800
Ml sodium hydroxides（10w t%）And ethyl alcohol（20%（v/v））Mixed liquor in, be then allowed to stand 12 h.
（3）?（2）In mixed liquor be sieved through filter by 150 mesh stainless steels, with water washing three times to neutrality, obtain stoning mountain
Short, bristly hair or beard shape adsorbent.
（4）It weighs 0.05 g stoning hawthorn shape adsorbents and is added to 50 ml Coomassie Brillant Blue solutions（w t=0.01%）In,
It is adsorbed, the results showed that, after adsorbing 3 h, percent of decolourization is up to 98% or more.
Embodiment 12：
（1）It weighs 10 g sodium alginates and is dissolved into 500 ml 5%（v/v）In acetylacetone,2,4-pentanedione solution, mechanical agitation is until alginic acid
Sodium dissolves, and is then allowed to stand 2 h.
（2）It under magnetic stirring, will with syringe（1）In sodium alginate soln with 1 drop/2 s speed be added drop-wise to 800
Ml sodium hydroxides（10w t%）And ethyl alcohol（20%（v/v））Mixed liquor in, be then allowed to stand 12 h.
（3）?（2）In mixed liquor be sieved through filter by 150 mesh stainless steels, with water washing three times to neutrality, obtain stoning mountain
Short, bristly hair or beard shape adsorbent.
（4）It weighs 0.05 g stoning hawthorn shape adsorbents and is added to 50 ml Coomassie Brillant Blue solutions（w t=0.01%）In,
It is adsorbed, the results showed that, after adsorbing 3 h, percent of decolourization is up to 98% or more.
Claims (8)
1. a kind of preparation method of special appearance adsorbent, which is characterized in that include the following steps：
（1）It weighs a certain amount of polysaccharide to be dissolved into the aqueous solution of acid, stirring is then allowed to stand 1 ~ 5 h until polysaccharide dissolving；
（2）Under stiring, by step（1）In polysaccharide solution with 1 ~ 2 drop/2 s be added drop-wise to certain density sodium hydroxide and second
In the mixed solution of alcohol, it is then allowed to stand 7 ~ 17 h；
（3）Step（2）In mixed liquor filtering, washing to neutrality is to get to special appearance adsorbent.
2. the preparation method of special appearance adsorbent according to claim 1, it is characterised in that：The step（1）In
Polysaccharide is one kind in chitosan or xanthans or sodium alginate, and the acid is citric acid or acetylacetone,2,4-pentanedione or ethylenediamine tetra-acetic acid
Or one kind in acetic acid.
3. the preparation method of special appearance adsorbent according to claim 1, it is characterised in that：The step（1）In it is molten
Liquid time of repose is 2 h.
4. the preparation method of special appearance adsorbent according to claim 1, it is characterised in that：The step（2）In it is more
The rate of addition of sugar juice is 1/2 s of drop.
5. the preparation method of special appearance adsorbent according to claim 1, it is characterised in that：The step（2）Middle hydrogen
The mass concentration of sodium oxide molybdena is 10%.
6. the preparation method of special appearance adsorbent according to claim 1, it is characterised in that：The step（2）Middle second
The volumetric concentration of alcohol is 20%.
7. the preparation method of special appearance adsorbent according to claim 1, it is characterised in that：The step（2）In mix
The time of repose for closing liquid is 12 h.
8. the preparation method of special appearance adsorbent according to claim 1, it is characterised in that：The step（3）Middle institute
It is stoning hawthorn shape adsorbent to obtain special appearance adsorbent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810472060.1A CN108745299A (en) | 2018-05-17 | 2018-05-17 | A kind of preparation method of special appearance adsorbent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810472060.1A CN108745299A (en) | 2018-05-17 | 2018-05-17 | A kind of preparation method of special appearance adsorbent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108745299A true CN108745299A (en) | 2018-11-06 |
Family
ID=64008155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810472060.1A Pending CN108745299A (en) | 2018-05-17 | 2018-05-17 | A kind of preparation method of special appearance adsorbent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108745299A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1417133A (en) * | 2002-10-28 | 2003-05-14 | 陆娴婷 | Water purifying agent and its prepn process |
| CN102553542A (en) * | 2012-02-17 | 2012-07-11 | 杭州师范大学 | Granular absorbent with nano-apertures and preparation method for granular absorbent |
| CN102580690A (en) * | 2012-03-06 | 2012-07-18 | 杭州师范大学 | Nano-aperture granular adsorbent and preparation and application thereof |
| CN103071460A (en) * | 2013-01-09 | 2013-05-01 | 中科院广州化学有限公司 | Chitosan crosslinking adsorbent as well as preparation method and application thereof |
| CN103127913A (en) * | 2012-11-12 | 2013-06-05 | 武汉斯隆电气有限公司 | Nanoscale adsorbent used for treating micropollutants in water |
-
2018
- 2018-05-17 CN CN201810472060.1A patent/CN108745299A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1417133A (en) * | 2002-10-28 | 2003-05-14 | 陆娴婷 | Water purifying agent and its prepn process |
| CN102553542A (en) * | 2012-02-17 | 2012-07-11 | 杭州师范大学 | Granular absorbent with nano-apertures and preparation method for granular absorbent |
| CN102580690A (en) * | 2012-03-06 | 2012-07-18 | 杭州师范大学 | Nano-aperture granular adsorbent and preparation and application thereof |
| CN103127913A (en) * | 2012-11-12 | 2013-06-05 | 武汉斯隆电气有限公司 | Nanoscale adsorbent used for treating micropollutants in water |
| CN103071460A (en) * | 2013-01-09 | 2013-05-01 | 中科院广州化学有限公司 | Chitosan crosslinking adsorbent as well as preparation method and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106984290A (en) | The preparation method of the chitosan of adsorbing heavy metal ions/sodium alginate magnetic composite microsphere | |
| CN108970580B (en) | Light rare earth magnetic composite activated charcoal and preparation method and application thereof | |
| CN101829545B (en) | Heavy metal biological adsorbent using eggshell membrane as matrix and preparation method thereof | |
| CN105126773B (en) | It is a kind of using shrimp and crab shells as renewable heavy-metal adsorption material of raw material and preparation method thereof and regeneration method and application | |
| CN107324616B (en) | A kind for the treatment of process of heavy metal containing sewage | |
| CN107088413B (en) | CuO/Cu2O photocatalyst and preparation method and application thereof | |
| CN102443186A (en) | Preparation method of epoxy chloropropane cross-linked chitosan microspheres | |
| CN103127914A (en) | Magnetic chitosan microsphere treatment agent and preparation method thereof | |
| CN104910445A (en) | Chitosan-coated ferroferric oxide magnetic nano composite particle and preparation method thereof | |
| CN104126807A (en) | Method of using catering waste shrimp shells for continuous production of compound amino acid oligopeptide chelated calcium and chitin | |
| CN101314123A (en) | Magnetic biological adsorption agent and preparation method thereof | |
| CN109261133A (en) | A kind of ferromagnetism composite balls and its application being easily recycled | |
| CN102218300A (en) | Chitosan nano fibrous membrane adsorbing material and preparation method thereof | |
| CN103127912B (en) | A kind of preparation method of adsorbent of heavy-metal ion removal from fish oil | |
| CN101613422A (en) | A kind of natural rubber latex protein fixation method | |
| CN103127916A (en) | Preparation method of tourmaline/magnetic chitosan microsphere treatment agent | |
| CN104014314A (en) | Bio-adsorbent, preparation method and application | |
| CN102872832A (en) | Preparation method of titanium dioxide loaded chitosan molecular imprinting adsorbent | |
| CN103623779B (en) | A kind of Hydrophilic functional carbon sphere and the application in removal heavy metal ions in wastewater thereof | |
| CN103191701B (en) | Preparation method of gold absorbent based on waste eggshell membrane biomaterial | |
| CN110038647A (en) | A kind of method of electrolysed saline solution highly efficient regeneration resin | |
| CN108504695B (en) | Extracellular polymer and preparation method thereof, heavy metal treatment agent and heavy metal wastewater treatment method | |
| Prasanna | A novel adsorption process for the removal of salt and dye from saline textile industrial wastewater using a three-stage reactor with surface modified adsorbents | |
| CN108745299A (en) | A kind of preparation method of special appearance adsorbent | |
| CN206570148U (en) | A kind of integrated combination purifier |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |